@Claude31. I got the same problem (Xcode12)
ContentView.swift:
import SwiftUI
struct ContentView: View {
@State var isSideBarPresented = true
@State var node = Node3D()
var body: some View {
VStack {
Button("Toggle") { isSideBarPresented.toggle() }
HSplitView {
Color.white.frame(
minWidth: 100,
maxWidth: .infinity,
minHeight: 0,
maxHeight: .infinity
)
if isSideBarPresented {
Node3DConfigurationView(node: $node)
}
}
}.frame(
minWidth: 0,
maxWidth: .infinity,
minHeight: 0,
maxHeight: .infinity
)
}
}
Node3DConfigurationView.swift:
import simd
import SwiftUI
struct Node3D {
var pivot: simd_float3 = .zero
var position: simd_float3 = .zero
var rotation: simd_float3 = .zero
var scale: simd_float3 = .zero
}
/* not sure if needed, but I randomly got some error without it */
fileprivate func wrap(_ binding: Binding<Float>) -> Binding<NSNumber> {
Binding(
get: { NSNumber(value: binding.wrappedValue) },
set: { binding.wrappedValue = $0.floatValue }
)
}
struct Node3DConfigurationView: View {
@Binding var node: Node3D
var body: some View {
ScrollView(.vertical) {
Group {
makeSection("Pivot", value: $node.pivot)
makeSection("Position", value: $node.position)
makeSection("Rotation", value: $node.rotation)
makeSection("Scale", value: $node.scale)
}
.textFieldStyle(RoundedBorderTextFieldStyle())
}
}
func makeSection(_ headerTitle: String, value: Binding<simd_float3>) -> some View {
Section(header: makeHeader(headerTitle)) {
HStack {
HStack {
Text("x")
TextField("\(headerTitle)X", value: wrap(value.x), formatter: NumberFormatter())
}
.frame(minWidth: 50)
HStack {
Text("y")
TextField("\(headerTitle)Y", value: wrap(value.y), formatter: NumberFormatter())
}
.frame(minWidth: 50)
HStack {
Text("z")
TextField("\(headerTitle)Z", value: wrap(value.z), formatter: NumberFormatter())
}
.frame(minWidth: 50)
}.padding()
}
}
func makeHeader(_ title: String) -> some View {
Text(title).frame(maxWidth: .infinity, alignment: .leading)
}
}
AppDelegate.swift (Default, generated by Xcode):
import Cocoa
import SwiftUI
@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
var window: NSWindow!
func applicationDidFinishLaunching(_ aNotification: Notification) {
let contentView = ContentView()
window = NSWindow(
contentRect: NSRect(x: 0, y: 0, width: 480, height: 300),
styleMask: [.titled, .closable, .miniaturizable, .resizable, .fullSizeContentView],
backing: .buffered, defer: false
)
window.isReleasedWhenClosed = false
window.center()
window.setFrameAutosaveName("Main Window")
window.contentView = NSHostingView(rootView: contentView)
window.makeKeyAndOrderFront(nil)
}
}
